Diamondback Energy, Inc.
US ˙ NasdaqGS ˙ US25278X1090

SecurityFANG / Diamondback Energy, Inc.
InstitutionE&G Advisors, LP
Latest Disclosed Ownership3,009 shares
Latest Disclosed Value $ 595,150
E&G Advisors, LP reports 2.42% increase in ownership of FANG / Diamondback Energy, Inc.

On April 21, 2026 - E&G Advisors, LP filed a 13F-HR form disclosing ownership of 3,009 shares of Diamondback Energy, Inc. (US:FANG) valued at $595,150 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 2,938 shares of Diamondback Energy, Inc.. This represents a change in shares of 2.42% during the quarter. The current value of the position is $579,594 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-21 2026-03-31 13F DIAMONDBACK ENERGY COM 25278X109 3,009 71 2.42 595 34.92 0.1325
2026-01-23 2025-12-31 13F DIAMONDBACK ENERGY COM 25278X109 2,938 -50 -1.67 442 3.28 0.0988
2025-10-21 2025-09-30 13F DIAMONDBACK ENERGY COM 25278X109 2,988 8 0.27 428 4.40 0.0995
2025-07-14 2025-06-30 13F DIAMONDBACK ENERGY COM 25278X109 2,980 -15 -0.50 409 -14.44 0.1062
2025-04-23 2025-03-31 13F DIAMONDBACK ENERGY COM 25278X109 2,995 0 0.00 479 -2.45 0.1351
2025-01-24 2024-12-31 13F DIAMONDBACK ENERGY COM 25278X109 2,995 0 0.00 491 -5.04 0.1332
2024-10-18 2024-09-30 13F DIAMONDBACK ENERGY COM 25278X109 2,995 -215 -6.70 516 -19.63 0.1429
2024-07-18 2024-06-30 13F DIAMONDBACK ENERGY COM 25278X109 3,210 280 9.56 643 10.69 0.1890
2024-04-19 2024-03-31 13F DIAMONDBACK ENERGY COM 25278X109 2,930 -100 -3.30 581 23.67 0.1822
2024-01-25 2023-12-31 13F DIAMONDBACK ENERGY COM 25278X109 3,030 -50 -1.62 470 -1.68 0.1665
2023-10-25 2023-09-30 13F DIAMONDBACK ENERGY COM 25278X109 3,080 0 0.00 477 18.07 0.1744
2023-07-21 2023-06-30 13F DIAMONDBACK ENERGY COM 25278X109 3,080 0 0.00 405 -2.88 0.1415
2023-07-20 2023-03-31 13F/A-1 DIAMONDBACK ENERGY COM 25278X109 3,080 0 0.00 416 -1.19 0.1543
2023-04-17 2023-03-31 13F DIAMONDBACK ENERGY COM 25278X109 3,080 0 416 0.1517
2023-01-13 2022-12-31 13F DIAMONDBACK ENERGY COM 25278X109 3,080 0 0.00 421 13.48 0.1583
2022-10-11 2022-09-30 13F DIAMONDBACK ENERGY COM 25278X109 3,080 -60 -1.91 371 -2.37 0.1369
2022-07-06 2022-06-30 13F DIAMONDBACK ENERGY COM 25278X109 3,140 1,550 97.48 380 74.31 0.1286
2022-04-12 2022-03-31 13F DIAMONDBACK ENERGY COM 25278X109 1,590 1,590 218 0.0595
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.